You are mainly speaking about pilots on the way up. What about geriatrics like myself? I have over 15,000hrs, of which 2500 is in singles with about 1200hrs instructing, although retired I still fly my own aircraft, and would like to resume instructing, but the hoops are just too many and too expensive, and the annual requirements too much, so what useful info and experience I might have to give is wasted. I know I could walk into a club tomorrow and give a valuable day's teaching, but the CAA don't see it like that. I'm sure a great many feel the same way, what a waste of a resource.